Summary The core issue in the Gmail add-on authorization flow is a state management gap: after the OAuth callback completes, the popup window remains open with a static HTML message because the add-on UI (the CardService API) has no direct mechanism to communicate back to the parent card and request closure. The OAuth flow relies … Read more
Summary Multiple threads writing to a shared non-blocking TCP socket is not inherently thread-safe. The Linux kernel does not guarantee that data from different send() calls will be serialized without interleaving, even though send() itself is a single system call. In practice, data may interleave if writes are partial and buffers overlap, or if the … Read more
Summary The core issue was a failure to correctly handle a parent transaction handle lifecycle. The user attempted to nest a read-write transaction (wtxn) inside a parent transaction that was either read-only (th was RO) or a handle passed from an external scope (th existed). The mdb_txn_begin call failed with EINVAL because the parent argument … Read more
Summary This postmortem analyzes the architectural mismatch between a user’s request to execute C programs on-demand via Apache and the security/operational realities of web server design. The core confusion lies in treating a web server as an interactive shell rather than a restricted service gateway. We identify the root causes as a misunderstanding of the … Read more
Summary The issue at hand is sorting the y-axis of a plot based on values in a different column within a nested data structure and combining multiple plots into one file. The current approach uses ggplot2 and purrr to create individual plots, but the y-axis is not sorting as desired. Additionally, the goal is to … Read more
Summary A Bitcoin miner on Apple Silicon using the Metal framework was submitting shares that the pool rejected with a diff mismatch or low difficulty error, despite the local log showing a difficulty of 38. The root cause was a difficulty target mismatch: the miner was correctly hashing at the pool-assigned difficulty, but the pool’s … Read more
Summary The Android clipboard system is designed for universal interoperability across applications. When an application copies custom data, the system may not preserve the original MIME-type you specified, defaulting instead to text/plain. This is not a bug; it is a known system-level behavior that affects custom MIME-type retrieval. In your specific case, the issue stems … Read more
Summary A developer using a Raspberry Pi Pico 2W with MbedTLS and LwIP encountered certificate verification failures when connecting to a Supabase backend, while connections to other APIs functioned correctly. The specific error indicated an expired certificate despite the system time being correctly synchronized via SNTP. The issue was identified as failed certificate chain validation … Read more
Summary An Interactive Grid (IG) with automatic row processing fails to perform reliable, asynchronous row-level validation before data is committed. The core issue is that the IG’s built-in DML process occurs after the data is posted to the server, but before the has_overlap PL/SQL function can be called synchronously. Furthermore, checking for overlaps across newly … Read more
Summary A developer working with Tanstack Start wanted to access router context (specifically a sessionId) inside a createServerFn function. The confusion arose because router context is typically associated with the client-side router instance. To bridge this gap, the solution involves accessing the event object passed to the server function, which contains the request context. We … Read more